JP3702833B2 - Die casting apparatus and die casting method of die casting apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for conveying a mold used for casting between a casting area and a mold storage area in a die casting apparatus.
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 6-190526 describes a general die casting apparatus that performs casting using a mold. This die casting apparatus is configured to perform continuous casting using two sets of molds that move between a die casting body and a mold opening / closing apparatus. The mold is placed on a dedicated mold carriage and conveyed to the die-cast body, and then the mold is clamped by the die-cast body, and the molten metal is injected. After that, the mold is again placed on the mold carriage and conveyed to the mold opening / closing device, and then the mold is opened by the mold opening / closing device to take out the cast product.
[0003]
[Problems to be solved by the invention]
By the way, in the die casting apparatus as described above, for example, at the time of mold replacement or mold storage, the mold may be carried out of the casting area where casting or product removal is performed and transferred to a predetermined storage. . In this case, the mold changeover position is set in a direction further extended from the product take-out position in the mold conveyance path in the casting area, and the mold conveyance path to the storage is formed in a continuous form. Can be considered.
However, when the casting area and the mold storage area are connected by the conveyance path in the form as described above, the conveyance path of the casting area is substantially extended, the die casting apparatus is enlarged, and the occupied space is increased. become.
[0004]
The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to convey a mold in a casting region in a die casting apparatus that performs casting by alternately replacing a plurality of sets of molds. An object of the present invention is to provide a mold transfer technique capable of effectively performing mold changeover without expanding the path.
[0005]
[Means for Solving the Problems]
  In order to achieve the above object, a die casting apparatus according to the present invention is provided.And die casting method of die casting apparatusIs provided with a configuration as described in each claim.
  In the die casting apparatus according to claim 1, a casting region in which a plurality of sets of dies are alternately carried into the die casting main body to perform casting, and the cast dies are carried out from the die casting main body to take out products. A mold storage area for storing the mold is provided, and the mold is conveyed between the casting area and the mold storage area. The die casting equipmentThere are a common path formed between the casting position corresponding to the die casting body and the unloading position, and two branch paths branching from the unloading position of the common path, and a total of two sets arranged in each branch path The mold is configured to be alternately carried into and out of the die casting body through a common path,It has the 1st conveyance path | route which conveys a metal mold | die in a casting area | region, and the 2nd conveyance path | route which conveys a metal mold | die between a casting area | region and a metal mold | die storage area | region. Furthermore, the first transport pathEach branch pathIs set a change position for changing the mold, and the second transfer path is connected to the change position.
  According to the die casting apparatus configured as described above, during a normal casting operation, a plurality of sets of dies are transported along the first transport path so that they are alternately replaced with the die casting body, and one set of dies. When the molten metal is injected into the mold, the other set of molds is opened and the product is taken out. At the time of mold set-up change, the mold is transferred between the casting area and the mold storage area through the second transfer path at the set-up change position set in the first transfer path, and so-called change-over is performed. . In the mold storage area, molds are stored or repaired.
  In the first aspect of the present invention, the mold setup change position is set in the mold conveyance path used during normal casting operations. For this reason, the conveyance path used for the casting operation will not be expanded, thereby making it possible to save space and reduce the cost of the die casting apparatus.
  Furthermore, by setting a part of the first transport path as a common path, the installation space for the first transport path can be reduced. In addition, by setting up a setup change position in each branch path, each mold can be set up independently, and the setup of the other mold can be changed while the casting work with one mold is continued. And the productivity of the die casting apparatus can be improved.
[0006]
In this case, as described in claim 2, in the connection portion between the first conveyance path and the second conveyance path, the mold conveyance direction by the second conveyance path is the mold by the first conveyance path. The structure which cross | intersects with respect to this conveyance direction is employable.
[0008]
  Claim 3In the die casting apparatus described in the above, the mold is transferred along the branch path between the unloading position and the product take-out position by a mold opening device that moves along the branch path. A mold holding mechanism that engages or disengages is provided. The mold opening device engages or disengages from the mold via the mold holding mechanism at the unloading position, so that the mold unloaded from the die casting main body via the common path is loaded onto the branch path or common from the branch path. Allow entry into the route. Thereby, conveyance of the metal mold | die between a common path | route and a branch path | route can be performed smoothly.
[0009]
  Claim 4In the die casting apparatus described in the above, the mold holding mechanism is engaged or disengaged with respect to the mold at the unloading position and the mold change position at the unloading position and the changeover position, respectively. And a second mold holding means that can be detached. The first mold holding means and the second mold holding means are configured to be selectively applicable to the mold. Therefore, at the time of normal casting operation, engagement or disengagement with respect to the mold is performed using the first mold holding means at the unloading position. On the other hand, at the time of mold changeover, the second mold holding means is used to engage or disengage the mold at the unloading position and the changeover position. As a result, it is possible to change the mold in the conveying path in the casting area.
[0010]
  Claim 5In the die casting apparatus described in the above, the first mold holding means includes a first opening that extends in a direction along the common path, and a first engagement piece that is engaged by being inserted into the first opening. In addition, the second mold holding means includes a second opening that extends in the direction along the common path, and a second engagement piece that is inserted into the second opening. In a state where the second engagement piece is inserted into the two openings, the engagement or disengagement is released by relatively changing the direction of the second engagement piece. Therefore,Claim 5According to the invention described in (1), a mold holding mechanism having a simple structure is provided.
[0011]
  In this case,Claim 6As described above, it is preferable that a means for pressing the second engaging piece against the inner surface of the second opening is provided, and the first engaging piece is pressed against the inner surface of the first opening by the pressing. When such a configuration is employed, a smooth insertion operation is ensured by setting a gap between the first opening and the first engagement piece inserted into the opening. By pressing the second engagement piece against the inner surface of the second opening to close the gap, the play between the first opening and the first engagement piece can be eliminated.
[0012]
  Also,Claim 7According to the invention described in (1), it is possible to provide a method invention capable of effectively performing mold setup change without enlarging the mold conveyance path in the casting region.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a die casting apparatus and a mold conveying method according to an embodiment of the present invention will be described with reference to the drawings. Here, FIG. 1 is a schematic diagram showing an outline of the die casting apparatus 10 of the present embodiment. 2 and 3 are schematic views for explaining the conveyance of the mold during normal casting operation (production). 4 and 5 are schematic views for explaining the conveyance of the mold when the mold is changed. Further, FIGS. 6 to 9 are diagrams for explaining a clamping mechanism.
[0014]
Based on FIG. 1, the outline | summary of the die-cast apparatus 10 which concerns on this Embodiment is demonstrated. The die casting apparatus 10 is a mold exchange type in which two sets of molds D1 and D2 are alternately replaced with a single die casting body 11 to perform casting. The two sets of molds D1 and D2, these molds D1 and D2 A single die casting body 11 for performing mold clamping and molten metal injection, a single mold carriage 20 for carrying in and out of the molds D1, D2 to and from the die casting body 11, and the die casting body 11 being carried out. Two mold opening devices 50 for opening the molds D1, D2 are provided. The molds D1 and D2 are composed of a fixed mold Da and a movable mold Db.
The die casting main body 11 injects the molten metal into the cavities in the molds D1 and D2 in a state where the carried molds D1 and D2 are clamped, and pressurizes the back surfaces of the closed molds D1 and D2. In addition, a mold clamping device for clamping the mold from the lateral direction and a hot water supply device for injecting the molten metal into the molds D1, D2 after the mold clamping are provided.
[0015]
The mold carriage 20 carries the molds D1 and D2 and conveys them. Between the casting position P1 and the unloading position P2 corresponding to the die casting body 11 for loading and unloading the molds D1 and D2 with respect to the die casting body 11 The common path 30 formed by, for example, rails is moved, and two sets of molds D1 and D2 are alternately carried into and out of the die-cast main body 11.
[0016]
Further, two sets of branch paths 32 and 34 branch from the carry-out position P2 of the common path 30 are formed. The branch paths 32 and 34 are orthogonal to the common path 30, and the common path 30 and the two sets of branch paths 32 and 34 constitute a conveying path for the dies D 1 and D 2 that form a T shape as a whole. are doing. This transport path corresponds to the first transport path for transporting the mold within the casting region in the present invention. The branch paths 32 and 34 are constituted by rails, for example, and the molds D1 and D2 are moved on the rails. The product take-out positions P3 and P4 are provided when the molds D1 and D2 are opened. Core extraction devices 52 and 54 having a core extraction cylinder for extracting the core from the molds D1 and D2 are arranged. The core extracting devices 52 and 54 are shown in FIGS.
Further, the mold carriage 20 is provided with rails parallel to the rails of the branch paths 32 and 34, and when the mold carriage 20 is moved to the unloading position P2, it coincides with the rails of the branch paths 32 and 34 on the same line. To do. Therefore, the molds D1, D2 can go back and forth between the common path 30 and the branch paths 32, 34 at the carry-out position.
[0017]
The mold opening device 50 is disposed in each of the branch paths 32 and 34, moves along the branch path, and conveys the molds D1 and D2 between the unloading position P2 and the product unloading positions P3 and P4. The mold opening device 50 is moved by a moving means constituted by, for example, a ball screw mechanism using an electric motor as a drive source. The mold opening device 50 includes a clamp mechanism 60, and engages or disengages from the molds D1 and D2 via the clamp mechanism 60 at the carry-out position P2. The clamp mechanism 60 corresponds to the mold holding mechanism in the present invention, and details thereof will be described later.
Further, the mold opening device 50 has means for opening the molds D1, D2. Then, after the mold opening device 50 conveys the molds D1 and D2 to the product take-out positions P3 and P4, the mold opening means is operated to separate the other movable mold Db from the one fixed mold Da, and the fixed mold Da. The mold is opened by pulling the core out of it. After the mold is opened, the product is taken out by the product take-out device.
[0018]
On the branch paths 32 and 34, between the carry-out position P2 and the product take-out positions P3 and P4, there are set-up positions P5 and P6 for changing the molds D1 and D2 (changing with another mold). Is set. An inter-area transport path 36 for transporting the mold between the casting area and the mold storage area is formed corresponding to the setup change positions P5 and P6. This inter-area transport path 36 corresponds to the second transport path in the present invention. The inter-area transport path 36 is configured by, for example, a rail, and is configured to transport the molds D1 and D2 on the automatic guided vehicles 37 and 38 that travel on the rail. Note that the transfer of the molds D1, D2 between the branch paths 32, 34 and the automatic guided vehicles 37, 38 is configured to be performed using, for example, a transfer device as appropriate.
Here, the casting region is a region including the die casting main body 11, the mold opening device 50, and the conveyance paths of the molds D1 and D2 connecting them, and is a region used for normal casting operations. The mold storage area is an area that includes the mold storage 42 and the mold maintenance place 44 and stores or repairs the molds D1 and D2.
[0019]
Next, the clamp mechanism 60 of the mold opening device 50 will be described with reference to FIGS. As shown in the schematic diagram of FIG. 6, the clamp mechanism 60 includes a first clamp means 61 used at the time of normal casting operation and a second clamp means 66 used at the time of changing the molds D1 and D2. Have. The first clamping means 61 is held by the mold opening device 50 when the molds D1 and D2 move from the carry-out position P2 to the product take-out positions P3 and P4, and the molds D1 and D2 are moved from the carry-out position P2 to the casting position P1. It will be canceled when moving to. The first clamping means 61 corresponds to the first mold holding means referred to in the present invention.
[0020]
The first clamping means 61 includes two L-shaped hooks 62 that are provided opposite to the mold opening device 50 at regular intervals, and the molds D1 and D2 corresponding to the shape of the L-shaped hook 62. When the molds D1 and D2 after casting are moved from the casting position P1 to the unloading position P2 while waiting at the unloading position P2, the L groove 63 is formed in the fixed die Da. An L-shaped hook 62 is inserted into 63 from the side. That is, the L-shaped hook 62 and the L-shaped groove 63 are formed in a uniform cross-sectional shape with respect to the moving direction of the mold carriage 20, and the L-shaped hook 62 is utilized by using a moving operation toward the unloading position P2 of the molds D1, D2. Is configured to engage with the L groove 63. The L-shaped hook 62 corresponds to the first engagement piece in the present invention, and the L groove 63 corresponds to the first opening in the present invention.
In a state where the L-shaped hook 62 is engaged with the L-shaped groove 63, as shown in FIG. 7, the L-shaped hook 62 and the L-shaped groove 63 are configured to make surface contact in the direction intersecting the insertion direction, that is, in the mold opening direction. As a result, the molds D1, D2 are held in the mold opening device 50 in the transport direction.
[0021]
Next, the second clamping means 66 is configured to be engageable or disengageable at the carry-out position P2 and the setup change positions P5 and P6, respectively. The second clamp means 66 corresponds to the second mold holding means in the present invention. As shown in FIG. 6, the second clamping means 66 has a T-shaped hook 67 provided in the mold opening device 50, and a T-groove 68 provided in the fixed mold Da of the molds D1, D2. As in the case of the first clamping means 61, when the molds D1 and D2 after casting are moved from the casting position P1 to the unloading position P2 while waiting at the unloading position P2, a T-shaped hook is placed in the T-groove 68. 67 is configured to be inserted from the side. The T-shaped hook 67 is disposed between the L-shaped hooks 62 arranged to face each other, and a T-groove 68 is formed between the L-grooves 63 correspondingly. The T-shaped hook 67 corresponds to the second engaging piece in the present invention, and the T groove 68 corresponds to the second opening in the present invention.
[0022]
Further, the T-shaped hook 67 is provided so as to be capable of moving back and forth in the axial direction (in the mold opening direction and in the mold conveying direction) with respect to the mold opening device 50 and capable of reciprocating 90 degrees around the axial direction. For example, a cylinder is used as the means. The hook portion 67a of the T-shaped hook 67 is formed in a rectangular plate shape, and can be inserted into or removed from the T-groove 68 from the front direction when the hook portion 67a is in a horizontal state (disengagement position). It is said that. The T-shaped hook 67 can be engaged with the T-groove 68 in the vertical state (engagement position), and can be inserted from the side into the T-groove 68 in the vertical state. It cannot be inserted or removed from the direction. That is, the second clamp means 66 can engage and disengage the hook portion 67a with respect to the T-groove 68 by moving the T-shaped hook 67 forward and backward or turning 90 degrees.
In the second clamping means 66, the forward and backward movement of the T-shaped hook 67 is performed by pushing out the product opening mechanism provided in the mold opening device 50 and the molds D1 and D2 in order to push out the products in the molds D1 and D2. It is possible to configure using operations.
[0023]
Next, the operation of the die casting apparatus 10 configured as described above will be described with reference to FIGS. First, the operation during normal casting work will be described. 2 and 3 show how the molds D1 and D2 are conveyed during a normal casting operation. The dies D1 and D2 are alternately carried into and out of the die casting body 11 of the die casting apparatus 10, and the molten metal is injected into the cavities of the dies D1 and D2 at the casting position P1. Two sets of the same type of molds D1 and D2 can be used, or one set of different types can be used. Moreover, the driving | operation using only one of metal mold | die D1, D2 is also possible.
[0024]
For example, as shown in FIG. 2, one mold D <b> 1 for which casting has been completed is transported to the unloading position P <b> 2 by the mold carriage 20, and at this time, the one mold D <b> 1 is transferred to the mold opening device 50 via the clamp mechanism 60. Retained. The holding and releasing operation of the mold D1 by the clamp mechanism 60 will be described later. Next, as shown in FIG. 3, the mold opening device 50 moves to the product take-out position P3. As a result, the mold D1 is moved from the mold carriage 20 via the branch path 32 to the product take-out position P3, and then opened in the lateral direction that is the same as the moving direction. This mold opening includes not only the operation of pulling the movable mold Db away from the fixed mold Da but also the operation of pulling the core from the fixed mold Da by the core pulling device 52. After the mold is opened, the product is taken out from the mold D1, and a mold release agent is applied to the mold D1, and then the mold D1 is clamped.
[0025]
On the other hand, the waiting mold D2 is transported on the branch path 34 to the carry-out position P2 by the mold opening device 50, and moves to the mold carriage 20 in place of the mold D1. Next, the mold D2 is transported to the casting position P1 by the mold carriage 20, and casting by the die casting body 11 is performed. The mold D2 for which casting has been completed is carried out from the casting position P1 in the same manner as the mold D1, and this time, the mold D1 in a state of being clamped to the casting position P1 is carried in place of the mold D2.
Thus, according to the die casting apparatus 10 which concerns on this Embodiment, the casting operation | work using the two metal mold | die D1, D2 can be performed alternately.
[0026]
During the above-described normal casting operation, the first clamping means 61 engages or disengages the mold opening device 50 and the molds D1 and D2 by the clamp mechanism 60 at the carry-out position P2. That is, when the mold D1 or D2 is moved from the casting position P1 to the unloading position P2, the mold opening device 50 stands by at the unloading position P2. When the molds D1 and D2 are moved to the carry-out position P2, as shown in FIG. 7, the L-shaped hooks 62 of the mold opening device 50 are inserted from the side into the L grooves 63 of the molds D1 and D2. Engagement is thereby held with respect to the direction of movement of the mold opening device 50. At this time, in this embodiment, the T-shaped hook 67 which is the second clamping means 66 is inserted and engaged with the T-groove 68 from the side with the hook portion 67a in the vertical direction.
Therefore, if the T-shaped hook 67 is slightly moved forward in this state and the inner surface of the T-groove 68 is pushed by the hook portion 67a, the L-shaped hook 62 is relatively opposed to the inner surface on the opposite side of the L-groove 63. Therefore, even if there is a backlash in the mold opening direction between the L-shaped hook 62 and the L groove 63, this can be suppressed. Thereafter, the mold opening device 50 is moved to the product take-out position P3 or P4 while the molds D1 and D2 are held by the first clamping means 61, and shifts to the mold opening operation.
[0027]
On the other hand, when the molds D1 and D2 are carried into the casting position P1 from the carry-out position P2, the holding of the molds D1 and D2 by the clamp mechanism 60 is released. That is, when the molds D1 and D2 placed on the mold carriage 20 move toward the die casting body 11, the L-shaped hook 62 and the T-shaped hook 67 come out of the L groove 63 and the T groove 68, respectively, and the mold D1 , D2 are separated from the mold opening device 50. In this case, when the T-shaped hook 67 is set to pressurize the wall surface of the T-groove 68, the pressurization is loosened before the molds D1 and D2 are loaded into the die-cast body 11. That is, engagement or disengagement between the mold opening device 50 and the molds D1 and D2 by the clamp mechanism 60 during normal casting operation is automatically performed.
[0028]
Next, a so-called setup change operation for exchanging the dies D1, D2 with different dies will be described with reference to FIGS. 4 and 5 show a case where one of the molds D1 is replaced. At the time of this setup change, the second clamping means 66 in the mold opening device 50 holds the mold D1. That is, the T-shaped hook 67 is moved forward in a vertically oriented state (engaged position) and protrudes forward from the L-shaped hook 62. In this state, the mold opening device 50 stands by at the carry-out position P2. At that time, the mold opening device 50 stands by at a position shifted toward the product extraction positions P3 and P4 by an amount corresponding to the advancement of the T-shaped hook 67 as compared with the normal casting operation.
Therefore, when the molds D1 and D2 are moved to the carry-out position P2 in this state, the T-shaped hook 67 is inserted into the T-groove 68 of the mold D1, but the L-shaped hook 62 is not inserted into the L-groove 63. become. This state is shown in FIG. Thereafter, the mold opening device 50 is moved to the setup changing position P5 while the molds D1 and D2 are held by the second clamping means 66, and the T-shaped hook is turned 90 degrees at that position, and the hook portion 67a is turned sideways ( Set to the release position. Thereafter, the mold opening device 50 is moved to the product removal position P3. By this movement, the T-shaped hook 67 comes out of the front surface of the T groove 68. Thus, the mold opening device 50 and the mold D1 are disconnected, and the mold D1 can be replaced. FIG. 5 and FIG. 9 show this state. Thereafter, the mold D1 is appropriately transferred from the setup change position P5 of the branch path 32 onto the automatic guided vehicle 37 by the transfer device, and then passed through the inter-area transfer path 36 to the mold storage 42 or the mold maintenance place. 44 to be stored or repaired. The mold opening device 50 stands by at the product removal position P3.
[0029]
Subsequently, another mold is transferred from the mold storage 42 by the automatic guided vehicle 37 and transferred to the setup change position P5 of the branch path 32 by the transfer device. Thereafter, the mold opening device 50 moves from the product removal position P3 to the setup change position P5. As a result, the hook portion 67 a of the T-shaped hook 67 is inserted into the groove from the front surface of the T-groove 68. In this state, the T-shaped hook 67 is turned 90 degrees, and the hook portion 67a is in a vertical state and engaged with the T-groove 68. Thus, the mold changeover is completed.
During this time, the casting operation can be continued for the other mold D2.
[0030]
As described above, according to the present embodiment, during the normal casting operation, the two sets of dies D1 and D2 are conveyed along the common path 30 and the branch paths 32 and 34, so that the die casting main body 11 is alternated. The casting operation can be performed by replacing the molds D1 and D2, and the casting region and the metal mold can be exchanged through the inter-region transfer path 36 at the changeover positions P5 and P6 set in the branch paths 32 and 34 when the molds D1 and D2 are replaced. It can be transferred to and from the mold storage area for setup change. In the present embodiment, the changeover positions P5 and P6 of the dies D1 and D2 are set between the unloading position P2 and the product unloading positions P3 and P4 in the conveying path of the dies D1 and D2 used during normal casting work. Set in between. Therefore, it is possible to perform setup change without enlarging the conveyance path used for the casting operation, and space saving and cost reduction of the die casting apparatus 10 can be achieved.
[0031]
Moreover, in this Embodiment, since it is set as the common path | route 30 about the conveyance between the casting position P1 and the unloading position P2, it becomes possible to reduce the installation space of the conveyance path | route regarding a casting area | region. In addition, by setting the setup change positions P5 and P6 in the branch paths 32 and 34, the setup changes of the respective molds D1 and D2 can be performed independently, and casting work by one of the molds D1 and D2 is performed. The other molds D1 and D2 can be replaced without stopping. For this reason, the productivity of the die casting apparatus 10 can be improved.
[0032]
Further, during normal casting operation, the molds D1 and D2 are automatically engaged or disengaged from the mold opening device 50 via the first clamping means 61. Thus, an extremely rational mold opening device 50 without wasteful operation is provided.
By the way, in the case of a clamp type that automatically engages and disengages using the conveying operation of the molds D1 and D2, in order to change the molds D1 and D2 in the normal conveyance path, the mold opening is performed. It is necessary to trim the device 50 and the molds D1, D2. In the present embodiment, as described above, the second clamping means 66 is provided, and at the time of setup change, the second clamping means 66 is used to engage the molds D1 and D2 with the mold opening device 50. In this configuration, separation is performed, and the changeover in the normal transport path is realized.
[0033]
In addition, this invention is not limited to embodiment mentioned above, In the range which does not deviate from the summary, it can change suitably.
For example, the clamp mechanism 60 constituting the mold holding mechanism has two types of first clamp means 61 and second clamp means 66, but at any position in the conveyance path of the dies D1 and D2. When a power-operated clamping mechanism that can be engaged and disengaged by operating is used, only one type is required.
Moreover, although the 1st clamp means 61 of the clamp mechanism 60 was comprised from the L-shaped hook 62 and the L groove | channel 63, it is not necessarily limited to L shape. In short, any shape may be used as long as it is configured by an opening and an engagement piece inserted into the opening, and the mold is held in the direction intersecting the insertion direction by insertion.
Further, the common route along which the mold carriage 20 moves may be either a rail installed on the ground side or a rail installed on the ceiling side.
In the above-described embodiment, the molds D1 and D2 are moved horizontally to open the mold, but the molds D1 and D2 are moved vertically to open the mold. You may change it to an expression.
In the present embodiment, it has been described that the molds D1 and D2 are transferred to the automatic guided vehicles 37 and 38 using the mold transfer device at the setup change positions P5 and P6. The automatic guided vehicles 37 and 38 are placed in the setup change positions P5 and P6 of the branch paths 32 and 34, and the dies D1 and D2 are conveyed between the unloading position P2 and the product unloading positions P3 and P4 during normal casting work. Is performed using rails laid on the automatic guided vehicles 37 and 38, and at the time of setup change, the molds D1 and D2 are stopped on the automatic guided vehicles 37 and 38 and changed to a configuration in which they are carried out to the mold storage area. May be.
In the second clamping means 66, the T-shaped hook 67 is rotated to change the direction of the hook portion 67a to the vertical direction (engagement position) and the horizontal direction (detachment position). In addition, an extendable hook portion may be employed. That is, the hook portion 67a is formed so as to be radially expandable and contractable with respect to the shaft portion of the T-shaped hook 67, and the hook portion 67a projects outward from the shaft diameter of the shaft portion (engagement position). You may change to the structure displaced to the state (separation position) which fits in.
[0034]
【The invention's effect】
As described above in detail, according to the present invention, in a die casting apparatus that performs casting by alternately exchanging a plurality of sets of molds, it is possible to perform mold setup change without enlarging the conveyance path of the molds in the casting region. It is possible to provide a mold conveyance technique that can be effectively performed.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing an outline of a die casting apparatus according to an embodiment.
FIG. 2 is a schematic diagram showing a mold conveyance mode during normal casting operation.
FIG. 3 is a schematic view showing a mold conveyance mode during a normal casting operation.
FIG. 4 is a schematic view showing a mold conveyance mode during setup change.
FIG. 5 is a schematic diagram showing a mold conveyance mode during setup change.
FIG. 6 is a schematic view showing a mold clamping mechanism.
FIG. 7 is an explanatory diagram showing an engagement state of a clamp mechanism during a normal casting operation.
FIG. 8 is an explanatory view showing an engagement state of the clamp mechanism at the time of setup change.
FIG. 9 is an explanatory diagram showing a detached state of the clamp mechanism at the time of setup change.
[Explanation of symbols]
10 ... Die casting equipment
11 ... Die casting body (casting area)
30 ... Common path (first transport path)
32, 34 ... branch path (first transport path)
36 ... Inter-area transport path (second transport path)
37, 38 ... Automated guided vehicle
50 ... Mold opening device (casting area)
42 ... Mold storage (mold storage area)
60 ... Clamp mechanism (mold holding mechanism)
61. First clamping means (first mold holding means)
66 ... Second clamping means (second mold holding means)
D1, D2 ... Mold
P1 ... Casting position
P2 ... Unloading position
P3, P4 ... Product removal position
P5, P6 ... Setup change position

Claims (7)

A casting area in which a plurality of sets of dies are alternately carried into the die-casting body to perform casting, and the mold after casting is taken out of the die-casting body to take out the product, and a mold storage area for storing the dies. A die casting apparatus that conveys a mold between the casting area and the mold storage area,
A total of two sets arranged on each branch path, each having a common path formed between the casting position and the unloading position corresponding to the die casting body and two branch paths branching from the unloading position of the common path The mold is configured to be alternately carried into and out of the die-cast body through the common path, a first transport path for transporting the mold in the casting area, the casting area, and the mold storage A second transfer path for transferring the mold to and from the area,
In each branch path of the first transfer path , a set-up position for changing the mold is set, and the second transfer path is connected corresponding to the set-up position. Die casting equipment.   2. The die casting apparatus according to claim 1, wherein, in a connection portion between the first conveyance path and the second conveyance path, the conveyance direction of the mold by the second conveyance path is the first conveyance path. A die casting apparatus characterized by intersecting with the direction of conveyance of the mold. The die casting apparatus according to claim 1 or 2 , wherein conveyance of the mold on the branch path is performed between a carry-out position and a product take-out position by a mold opening device that moves along the branch path. The die opening device includes a die holding mechanism that engages or disengages with a die. 4. The die casting apparatus according to claim 3 , wherein the mold holding mechanism includes first mold holding means that engages or disengages with respect to the mold at a carry-out position, and a carry-out position and a setup change position with respect to the mold. And a second mold holding means that can be engaged or disengaged, and the first mold holding means and the second mold holding means are configured to be selectively applicable to the mold. A die casting apparatus characterized by the above. 5. The die casting apparatus according to claim 4 , wherein the first mold holding unit is engaged by being inserted into the first opening and the first opening that extend in a direction along the common path. The second mold holding means includes a second opening that extends in the direction along the common path, and a second engagement piece that is inserted into the second opening. And is configured to be disengaged or engaged by relatively changing the direction of the second engagement piece inserted into the second opening. Die casting equipment. 6. The die casting apparatus according to claim 5 , wherein means for pressing the second engagement piece against the inner surface of the second opening is provided, and the first engagement piece is pressed against the inner surface of the first opening by the pressing. The die-casting device characterized by being configured. A casting area in which a plurality of sets of dies are alternately carried into the die-casting body to perform casting, and the mold after casting is taken out of the die-casting body to take out the product, and a mold storage area for storing the dies. A die casting method of a die casting apparatus for carrying a die between its casting area and a mold storage area,
A total of two sets arranged on each branch path, each having a common path formed between the casting position and the unloading position corresponding to the die casting body and two branch paths branching from the unloading position of the common path Are configured to be alternately carried into and out of the die-cast body through the common path, and each of the first transport path for transporting the mold in the casting region and each of the first transport paths A die casting apparatus characterized in that a die is transferred using a second transfer path connecting the casting area and the mold storage area at a mold changeover position set in a branch path. Mold transfer method.

Images